KR20230016580A - Method and apparatus for making call based on ring back tone analysis - Google Patents

Abstract

Provided is a method for making a call of a calling device, which includes the steps of: when receiving a call request, making a call to a communication system; setting the ringback tone not to be output to a speaker and analyzing the ringback tone provided according to the state of the terminal of the other party; and, when the result of the ringback tone analysis is a call failure, performing at least one subsequent operation of terminating an outgoing call, transmitting a message, redialing, and transmitting a voice message.

Description

Method and apparatus for making a call based on ring back tone analysis {METHOD AND APPARATUS FOR MAKING CALL BASED ON RING BACK TONE ANALYSIS}

The present disclosure relates to telephony technology.

When the calling terminal inputs the phone number of the called terminal, the wired telephone network or the mobile communication network requests a call from the called terminal. If the called terminal accepts the call, the call is connected between the calling terminal and the called terminal. If the called terminal is busy, the power of the called terminal is turned off, or the user of the called terminal rejects the call, the call is not connected and the ring-back tone set by the communication service provider is transmitted to the called terminal. is passed on to The ringback tone may include call connection music designated by the called party, and guide voices notifying various call states of the called party, such as busy, call rejection, no answer, and terminal off.

Callers can make calls through various types of devices, such as mobile terminals, smart watches, vehicle communication devices, and artificial intelligence speakers, as well as typical types of phones. In particular, since a call is made to the other party through a mobile terminal, smart watch, vehicle communication device, etc. that provide various functions as well as phone functions, the caller must wait while listening to the ringback tone during the call waiting time while stopping media playback. . However, the caller may not be able to talk to the other party due to reasons such as busy, call rejection, no answer, terminal turned off, missing number, etc., and may fail to connect the call after waiting while listening to the ringback tone until the other party answers the call. Therefore, a media use environment may be disturbed due to an outgoing call. In particular, a vehicle driver can make a phone call by connecting a mobile terminal to the vehicle, and listening to a ringback tone while driving can interfere with safe driving due to distraction and interruption of traffic information guidance.

Meanwhile, a mobile terminal or a vehicle communication device may make a call to the other party based on voice recognition. After making a call, the voice recognition function is stopped to listen to the ringback tone. As a result, it is difficult for the caller to proceed with follow-up procedures by using the voice recognition function after making a call.

The present disclosure relates to a method and apparatus for automating a call origination procedure based on RBT analysis.

A method of making a call by a calling device according to an embodiment, comprising the steps of making a call to a communication system when a call request is received, setting a ringback tone not to be output to a speaker, and providing ringback tone according to the state of a counterpart terminal. and, if the result of the ringback tone analysis is a call failure, performing at least one subsequent operation of terminating an outgoing call, transmitting a message, redialing, and transmitting a voice message.

In the performing of the at least one follow-up operation, the outgoing call may be terminated without user intervention, and an additional operation of transmitting the message or redialing the call may be performed according to a cause of call failure or a user setting.

The performing of the at least one follow-up operation may include, when an additional operation following a call failure is set to forward a voice message, the stored voice message is transmitted to the voice mailbox of the telecommunication service provider at the time when the voice message can be transmitted, and then without user intervention. You can end outgoing calls.

The method of originating a call may further include providing a call failure notification to a user when the result of the ring back tone analysis is a call failure.

The method of making a call may further include outputting the other party's voice through the speaker when the result of the ring back tone analysis is that the call connection is successful.

In the analyzing of the ring back tone, the status of the counterpart terminal may be determined by comparing the ring back tone characteristics for each state of the called terminal provided by various communication service providers.

Analyzing the ringback tone may include a call failure when the ringback tone is analyzed as one of busy, rejected, no answer, offline, and invalid number. can be judged by

The method of originating a call may further include receiving a voice command from a user through an activated voice recognition function while receiving a ring back tone.

In the performing of the at least one follow-up action, a follow-up action may be recommended based on a cause of call failure, a user setting, or a user history, and a follow-up action requested by the user may be performed.

A method for making a phone call according to another embodiment, comprising the steps of making a phone call to a communication system when receiving a voice command for making a phone call; analyzing the ringback tone while not detecting the ringback tone; if the result of the ringback tone analysis is a call failure, recommending a follow-up action based on a cause of call failure, user settings, or user history; and performing a follow-up action requested by the user. do.

The method of originating a call may further include maintaining a voice recognition function continuously activated while the ringback tone is received.

In the performing of the subsequent operation, a subsequent operation requested by the user may be performed through a voice command.

The method of originating a call may further include providing a call failure notification to a user when the result of the ring back tone analysis is a call failure.

The method of making a call may further include outputting the other party's voice through the speaker when the result of the ring back tone analysis is that the call connection is successful.

In the analyzing of the ring back tone, the status of the counterpart terminal may be determined by comparing the ring back tone characteristics for each state of the called terminal provided by various communication service providers.

Analyzing the ringback tone may include a call failure when the ringback tone is analyzed as one of busy, rejected, no answer, offline, and invalid number. can be judged by

A call device according to an embodiment, when receiving a request, makes a call to a communication system, sets the ringback tone not to be output to a speaker, analyzes the ringback tone provided according to the state of the other party's terminal, and analyzes the ringback tone. and a processor for performing at least one subsequent operation of terminating an outgoing call, transmitting a message, redialing, and transmitting a voice message, when is a call failure.

The processor may receive a voice command from a user through an activated voice recognition function while receiving the ringback tone.

If the result of analyzing the ringback tone is a call failure, the processor may recommend a follow-up action or perform a follow-up action based on a cause of call failure, user setting, or user history.

The processor may recommend a subsequent operation based on user context information predicted based on user location and movement information.

According to the embodiment, since the user may not listen to the ring back tone while waiting for the call connection, the user can listen to the media being used without interruption until the call is connected even if the user makes a call.

According to the embodiment, when a call fails, the user does not need to listen to unnecessary ringback tone, and in particular, interference with safe driving caused by listening to ringback tone while driving can be reduced.

According to the embodiment, it is possible to determine call failure without user intervention by analyzing the ringback tone, and accordingly, follow-up operations including termination of the call are automatically performed, thereby improving user convenience.

According to the embodiment, it is possible to receive a voice command from the user while analyzing the ringback tone, so that the user can use the voice recognition-based artificial intelligence service without limitation while making a call, and can use various call-related situations and voice commands as big data. , and can be used to develop call-related AI services.

1 is a conceptual diagram of a call device according to an embodiment.
2 is a flowchart of a method for making a call by a calling device according to an embodiment.
3 is a diagram illustrating a conventional voice recognition-based call origination method.
4 is a diagram illustrating a voice recognition based phone call method according to another embodiment.
5 is a flowchart of a method for recommending a follow-up action based on artificial intelligence according to an embodiment.
6 is a hardware configuration diagram of a call device according to an embodiment.
7 is a conceptual diagram of a vehicle device supporting RBT analysis according to an exemplary embodiment.

Hereinafter, with reference to the accompanying drawings, embodiments of the present disclosure will be described in detail so that those skilled in the art can easily carry out the present disclosure. However, the present disclosure may be embodied in many different forms and is not limited to the embodiments described herein. And in order to clearly describe the present disclosure in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

In the description, reference numerals and names are attached for convenience of explanation, and devices are not necessarily limited to reference numerals or names.

In the description, when a part is said to "include" a certain component, it means that it may further include other components without excluding other components unless otherwise stated. In addition, terms such as “… unit”, “… unit”, and “module” described in the specification mean a unit that processes at least one function or operation, which may be implemented as hardware or software or a combination of hardware and software. there is.

The general phone outgoing procedure is as follows.

The caller makes a call to the called party's phone number through the calling terminal and listens to the ring back tone while requesting a call to the called party's phone number corresponding to the called party's phone number in the communication system. If the called terminal accepts the call, the communication system connects the call between the calling terminal and the called terminal, so that the calling party can communicate with the called party.

If the called terminal is busy, the power of the called terminal is turned off, or the user of the called terminal rejects the call, the call is not connected and the ring back tone set by the communication service provider is transmitted to the calling terminal. It is passed on. In the past, when the called party was on a call or in a state where call connection was impossible, the call back tone was delivered to the calling terminal with a tone. Since it is a beep or voice guide that informs the called party of various call states such as offline or invalid number, the caller can terminate the call connection by directly listening to it. After that, the caller can perform various follow-up actions such as redialing the call or sending a message.

In this way, despite the development of communication technology and call terminals, the caller directly intervenes in the call origination procedure, listens to the ringback tone, and determines the call connection time and the called party state.

On the other hand, the user can listen to music, use navigation, etc. through a user terminal such as a mobile terminal, a smart watch, or a vehicle communication device that provides not only a call function but also various functions. However, when a user makes a phone call, use of other services related to audio is restricted. For example, when a user makes a phone call while listening to music or watching a video on a mobile terminal, media play is stopped. Also, when a user while driving makes a phone call by connecting the mobile terminal to the vehicle or directly makes a phone call through the vehicle communication device, playback of media such as radio and music heard through the speaker is stopped. In addition, if a vehicle driver listens to a ringback tone while driving, safe driving may be hindered by distraction and interruption of traffic information guidance.

The following is a method for making a call that smoothly provides a call outgoing procedure and subsequent procedures without the caller having to directly intervene in the call outgoing procedure while listening to unnecessary ring back tone, and does not need to restrict the use of other functions to listen to unnecessary ring back tone. explain about

1 is a conceptual diagram of a call device according to an embodiment.

Referring to FIG. 1, a communication device 100 includes one or more processors, a memory for loading a computer program executed by the processor, a storage device for storing computer programs and various data, a display, a communication device, and a speaker/microphone. It may be a computing device that includes The computer program may include the call program 110 including the instructions described to perform the operations of the present disclosure, and may include computer programs/applications that provide various functions in addition to them. The call device 100 may be implemented in various forms, and may be, for example, a user terminal equipped with the call program 110 or a vehicle device mounted on a vehicle.

When receiving a call request from a user, the communication device 100 makes a call to the communication system 200 . The call device 100 receives the ring back tone provided by the communication system 200 until the counterpart terminal (received terminal) 300 accepts the call. At this time, the call device 100 is set not to output the ringback tone to the user through the speaker, so the user may not hear the ringback tone. For example, the calling device 100 is set to preferentially execute an application other than a call (eg, music playback, navigation, etc.) through a display or a speaker/microphone until the call is connected with the other party's terminal 300 , it can be set not to always output the ringback tone to the speaker. Through this, the user may not listen to an unnecessary call back tone until the call is connected.

The call device 100 may determine the success of the call connection through the analysis of the ring back tone. The call device 100 may know the call connection time when the other party's terminal 300 accepted the call through analysis of the received sound including the ringback tone. Then, the call device 100 may not output the call connection tone, but when the call connection is successful, the call device 100 may output the other party's voice transmitted through the call through the speaker so that the user can have a conversation with the other party.

If the other party terminal 300 is on a call, the receiving terminal is turned off, or the user of the receiving terminal rejects the call, the call is not connected and the ring back tone set by the communication service provider It is delivered to the call device 100. The ringback tone varies depending on the status of the called party, such as busy, rejected, no answer, offline, invalid number, and the like, and also varies depending on the communication service provider.

The call device 100 may determine the other party's state by analyzing the ringback tone provided according to the state of the other party's terminal. In particular, even in the same state, since the RBT provided by each communication service provider is different, the call device 100 can determine the other party's status based on characteristics of the RBT of various communication service providers. Also, the call device 100 may determine the other party's state based on RBT characteristics provided by communication service providers in various countries. The call device 100 may determine the other party's state based on the stored RBT characteristics for each state of the other party. Alternatively, the call device 100 may communicate with the server 400 in real time to obtain a ringback tone characteristic for each other party state, then determine the other party state, or transmit the ring back tone to the server 400 to receive a response to the other party state. there is.

For example, the call device 100 extracts and analyzes a distinguishable key sound source from the ringback tone, and extracts characteristic information of each ringback tone based on the starting point or BEEF/tone of the ringback tone. If the sound source of the starting point of the ringback tone is damaged and the location information extraction of the core sound source is not accurate, an analysis error may occur. Then, the call device 100 may extract a core sound source based on BEEF/Tone.

When based on BEEF/Tone, the call device 100 extracts a beep/tone from a sound source including the beep/tone, and based on the beep/tone, the core sound source of the ringback tone exists Location information (P), length information (W) of the core sound source, and voice pattern (PT) of the core sound source may be stored as feature information. For example, when the receiving terminal, which is a subscriber of Company S, is on a call, the calling device 100 can receive "a customer is on a call, so it is connected to a voice box after a beep sound and a call fee is charged. A beep sound" can be received. there is. The calling device 100 provides location information (P) where a core sound source (eg, a sound source corresponding to “on a call”) exists from the beep, length information (W) of the core sound source, and voice pattern (PT) of the core sound source. ) may be stored as characteristic information of a guidance sound source during a call from company S. The core sound source may be variously set for each sound source.

Thereafter, the call device 100 extracts the location where the core sound source exists as an analysis section based on the starting point or beep/tone of the received ringback tone, and determines the number of the received ringback tone and the core sound source related to the analysis section for each analysis section. The state of the called terminal may be determined by calculating the pattern matching degree.

The call device 100 may check call failure based on the ring back tone analysis. Then, the call device 100 may perform a follow-up operation according to a cause of call failure or a user setting.

According to one embodiment, when the analysis result of the ringback tone is a call failure, the calling device 100 may end the outgoing call without user intervention. Also, the call device 100 may perform an additional operation such as sending a message to the other party or redialing a call again after a certain period of time according to a cause of call failure or a user setting. The call device 100 may transmit a text message or an instant message through a mobile communication network. For example, as a result of analyzing the ringback sound, if the cause of the call failure is busy, call refusal, no answer, or terminal off, the calling device 100 sends a text message set by the user (eg, hello, OOO, phone Please.) can be sent. The call device 100 may make a call again after a certain period of time when the cause of the call failure is busy, call rejection, no response, or the terminal is turned off. In this case, the redial interval may be different depending on the cause of the call failure. For example, the call device 100 may redial after 15 minutes when a call fails during a call, and may redial after several hours when a call fails due to call rejection/no answer/terminal turned off.

According to another embodiment, an analysis result of the ringback tone is a call failure, and an additional operation according to the call failure may be set to deliver a voice message. Then, the calling device 100 determines the time when the voice message can be transmitted through the ring back tone analysis, transmits the pre-stored voice message to the voice mailbox of the communication service provider on behalf of the user, and ends the outgoing call without user intervention. can do. Since a voice message can be used through the voice mailbox while being connected to the other party, the calling device 100 can terminate the phone connection after delivering the voice message.

When a call fails, the call device 100 may provide a call failure notification to the user. The call device 100 may display a call failure notification message on the display or output a call failure notification sound source through a speaker. Call failure notification may be set to notify the user of the cause of call failure. Alternatively, when an additional operation is performed after a call failure, the call device 100 may provide a call failure notification including not only the cause of the call failure but also the additional operation accordingly to the user. The call failure notification does not need to be provided only once, and may be provided individually when the outgoing call is terminated and when an additional operation is performed.

Meanwhile, the call device 100 may perform an operation according to a voice command in conjunction with a voice recognition function. In particular, the call device 100 may receive a voice command from the user by activating the voice recognition function even while receiving the ring back tone, and may perform subsequent operations based on this. The call device 100 may use a built-in voice recognition function and may perform an operation according to a voice command in conjunction with the server 400 .

The server 400 may provide an RBT pattern for each other party's status through the interlocking call program 110, or may respond with the other party's status to the RBT. In addition, the server 400 may instruct the communication program 110 to operate according to a voice command.

2 is a flowchart of a method for making a call by a calling device according to an embodiment.

Referring to FIG. 2 , when receiving an outgoing call request from a user, the communication device 100 makes an outgoing call to the communication system 200 according to the outgoing call request (S110).

The call device 100 sets the ringback tone not to be output through the speaker and receives the ringback tone provided by the communication system 200 (S120).

The call device 100 analyzes the ring back tone provided according to the state of the other party's terminal and determines the state of the other party (S130). The call device 100 may determine the other party's state by comparing the RBT characteristics for each called terminal state provided by various communication service providers with the received RBT. The call device 100 can know the call connection time when the other party terminal accepted the call through the ringback tone analysis, or the call device 100 can know the call connection time when the call is accepted by the other party terminal, or the call device 100 is busy, rejected, no answer, or the terminal is off (offline). ), invalid number, etc., can be determined.

If the call is successful, the call device 100 outputs the other party's voice through the speaker (S140).

If the result of the ring back tone analysis is a call failure, the call device 100 performs at least one of the subsequent operations of terminating an outgoing call, sending a message, redialing, and transmitting a voice message according to the cause of the call failure or user setting (S150). For example, when the analysis result of the ringback tone is a call failure, the call device 100 terminates the outgoing call without user intervention, and performs additional operations such as sending a message to the other party or redialing the call according to the cause of the call failure or user settings. can do. The communication device 100 transmits a pre-stored voice message on behalf of the user to a communication service provider at the time when the voice message can be transmitted, when the analysis result of the call connection tone is a call failure and the additional operation according to the call failure is set to forward a voice message. After sending to voicemail, the outgoing call can be ended without user intervention. Alternatively, the communication device 100 may be configured not to perform additional operations such as message transmission, redialing, and voice message transmission, while ending the outgoing call when the call fails.

If the call back tone analysis result is a call failure, the call device 100 provides a call failure notification and/or a follow-up operation notification to the user (S160). The call device 100 may display a call failure notification message on the display or output a call failure notification sound source through a speaker.

3 is a diagram illustrating a conventional voice recognition-based call origination method.

Referring to FIG. 3 , a user can make a call by inputting a phone number, but can also make a call through a voice command through a voice recognition function. However, since a conventional communication device outputs a ringback tone through a speaker so that the user can hear the ringback tone even when a call is made through a voice command, the voice recognition function must be disabled.

As such, the conventional communication device can use the voice recognition function only when the call is terminated. Therefore, the conventional communication device has a limitation in that it cannot receive a voice command such as a call end command when a call fails. This limits voice recognition-based AI services, and it is difficult to build various call-related situations and voice commands into big data, making it difficult to expect the development of call-related AI services.

4 is a diagram illustrating a voice recognition based phone call method according to another embodiment.

Referring to FIG. 4 , the call device 100 may include a call program 110 and a voice recognition module 130 .

The voice recognition module 130 receives a phone call voice command from the user (S210). For example, the voice recognition module 130 may receive a voice command "Call OOO".

The voice recognition module 130 instructs the call program 110 to make a call (S212). The voice recognition module 130 may extract a phone number corresponding to a voice command from contact information and instruct the call program 110 to make a call.

The call program 110 makes an outgoing call to the communication system 200 based on the call outgoing instruction (S220).

The call program 110 sets the ringback tone not to be output through the speaker, analyzes the ringback tone provided by the communication system 200, and determines the state of the other party (S230). At this time, the voice recognition module 130 may receive a voice command by continuously maintaining the voice recognition function in an activated state.

If the result of analyzing the ringback tone is a call failure, the call program 110 may recommend a follow-up action based on the cause of the call failure, user settings, or user history (S240). The call program 110 may recommend a cause of call failure or a follow-up action specified in user settings. The call program 110 may recommend a follow-up action preferred by the user based on the cause of call failure and/or the user's history for the called number. The call program 110 may recommend message transmission as a subsequent operation if the user has commanded message transmission when the cause of the call failure is “call rejection”. When the call to the called number 1 fails, the user commands message transmission, and when the call to the called number 2 fails, the call program 110 sends a message to the called number 1 as a follow-up operation if the user commands redial. It is recommended, and for the called number 2, redialing may be recommended as a subsequent operation. For example, the call program 110, if the call back tone analysis result is a call failure, “OOO is not answering the call, should you hang up?”, “OOO is on the phone. Do you want to call back in 15 minutes?”, or “OOO declined the call. Shall we send a message requesting a call?” Follow-up actions can be recommended.

The voice recognition module 130 receives a voice command for a subsequent operation from the user (S250). For example, the voice recognition module 130 may receive voice commands such as "hang up", "call OOO again", and "send a message to OOO".

The voice recognition module 130 instructs a subsequent operation to the call program 110 (S252).

The call program 110 performs a subsequent operation corresponding to the subsequent operation instruction (S260).

The call program 110 may perform at least one subsequent operation of terminating an outgoing call, transmitting a message, redialing, and transmitting a voice message. The call program 110 may store subsequent operations instructed by the user for each cause of call failure and/or for each called number.

Thereafter, the call program 110 may provide a call failure notification and/or a follow-up operation notification to the user.

As such, since the call device 100 equipped with the call program 110 analyzes the ringback tone without outputting the ringback tone through the speaker, the voice recognition function can be maintained in an active state while receiving the ringback tone. Accordingly, the user can issue a voice command while making a call, and thus can use the voice recognition-based artificial intelligence service without restriction. In addition, the communication device 100 can construct various call-related situations and voice commands as big data, and can utilize them for the development of call-related AI services. Even if the user makes a call while listening to music through the call device 100, the user can listen to the music without interruption until the call connection with the other party is successful, and the call can be initiated through a voice command.

On the other hand, the call program 110 may proceed with a call outgoing procedure based on voice recognition, but may receive instructions/requests for outgoing calls and/or follow-up operations through input means (eg, screen touch) other than voice. there is.

5 is a flowchart of a method for recommending a follow-up action based on artificial intelligence according to an embodiment.

Referring to FIG. 5 , the call device 100 may recommend a subsequent operation based on user context information predicted based on user location and movement information.

The call device 100 determines the situation information of the calling user based on the location change (S210). The call device 100 may determine the user's location and means of movement based on installed applications and sensor information such as GPS. The call device 100 determines whether the user is walking, riding a bicycle, or means of transportation such as a bus/subway/passenger car, etc. You can determine whether you are using . The communication device 100 may classify users into vehicle drivers, public transportation users, general users, and the like, based on means of transportation.

The call device 100 collects user information necessary for recommending a follow-up action based on situational information including the user's location and means of movement, and recommends a follow-up action when a call fails based on the collected information (S220). For example, if the user is a vehicle driver, the call device 100 obtains the arrival time of the destination from the navigation application, and asks, “Shall we call back 10 minutes before the arrival of OOO?”, “At 2:30 after arriving at OOO?” Shall I call you back?” Follow-up actions can be recommended. Alternatively, the calling device 100 infers that the user is moving to the appointment place with the called party whose call failed based on the schedule information recorded in the schedule application, calculates the arrival time from the current location to the appointment place, and reads “OOO Shall I send a message to 10 minutes before arrival?”, “Should I send a message to OOO of my current location?” Follow-up actions can be recommended. The call device 100 may receive a user command for the recommended follow-up action and record the recommended follow-up action and user command so that they can be used in future artificial intelligence analysis (S230). The user command may include instructions such as accepting or rejecting the recommended subsequent operation.

6 is a hardware configuration diagram of a call device according to an embodiment.

Referring to FIG. 6, the communication device 100 includes one or more processors 11, a memory 12 for loading computer programs executed by the processors, a storage device 13 for storing computer programs and various data, a display ( 14), a communication device 15, and a speaker/microphone 16, and the like, and may be a computing device 10 including a computer program executed in combination with the hardware. In addition, the call device 100 may further include various components, and may include not only a call program for a call function but also a computer program/application that provides various functions such as a voice recognition module. A computer program may include instructions that, when loaded into memory, cause a processor to perform methods/operations in accordance with various embodiments of the present disclosure. That is, the processor may perform methods/operations according to various embodiments of the present disclosure by executing instructions. An instruction refers to a set of computer readable instructions grouped on a functional basis that are the building blocks of a computer program and are executed by a processor.

The processor 11 controls the overall operation of each component of the computing device. The processor 11 may include at least one of a Central Processing Unit (CPU), a Micro Processor Unit (MPU), a Micro Controller Unit (MCU), a Graphic Processing Unit (GPU), or any type of processor well known in the art of the present disclosure. can be configured to include Also, the processor 11 may perform an operation for at least one application or program for executing a method/operation according to various embodiments of the present disclosure.

Memory 12 stores various data, commands and/or information. Memory 12 may load one or more computer programs from storage device 13 to execute methods/operations according to various embodiments of the present disclosure. The memory 12 may be implemented with volatile memory such as RAM, but the technical scope of the present disclosure is not limited thereto.

The storage device 13 may non-temporarily store a computer program. The storage device 13 may be a non-volatile memory such as a read only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a flash memory, a hard disk, a removable disk, or a device in the art to which the present disclosure pertains. It may be configured to include any well-known form of computer-readable recording medium.

The display 14 displays a screen of a computer program executed by the processor 11. The communication device 15 may include a communication module for a call function. The speaker/microphone 16 may output sound provided by a computer program executed by the processor 11 and receive external sound.

The call program includes instructions stored in a computer readable storage medium and executed by the processor 11 . The processor 11 may operate as follows by executing instructions.

When receiving a call request from the user, the processor 11 may make a call to the communication system 200 . The processor 11 may set the ringback tone not to be output through the speaker and analyze the ringback tone provided by the communication system 200 to determine the state of the other party. If the call is successful, the processor 11 may output the other party's voice transmitted through the connected call through the speaker. If the call fails, the processor 11 may perform at least one subsequent operation of terminating an outgoing call, transmitting a message, redialing, and transmitting a voice message, according to a cause of the call failure or a user setting. The processor 11 may provide a call failure notification and/or a follow-up operation notification to the user.

When receiving a call voice command, the processor 11 extracts a phone number corresponding to the voice command from contacts and makes a call. The processor 11 sets the ringback tone not to be output through the speaker, analyzes the ringback tone provided by the communication system 200, and determines the state of the other party. If the result of analyzing the ringback tone is a call failure, the processor 11 may recommend a follow-up action based on the cause of the call failure, user setting, or user history. Upon receiving a voice command for a subsequent operation, the processor 11 may perform a corresponding subsequent operation. The processor 11 may perform at least one follow-up operation of terminating an outgoing call, sending a message, redialing, and sending a voice message, and may store the follow-up operation instructed by the user for each call failure cause and/or incoming number. The processor 11 may provide a call failure notification and/or a follow-up operation notification to the user.

7 is a conceptual diagram of a vehicle device supporting ringback tone analysis according to an embodiment.

Referring to FIG. 7 , the communication device 100 may include a vehicle terminal 500 and a mobile terminal 600 connected thereto.

The vehicle terminal 500 includes one or more processors 510, a memory 520, a storage device 530 for storing computer programs and various data, a display 540, a communication device 550, and a speaker/microphone 560. etc., and may be a vehicle infotainment device capable of outputting audio, playing video, executing a navigation application, and the like. When the mobile terminal 600 is connected to the vehicle terminal 500 via Bluetooth or the like, it is controlled by the vehicle terminal 500, outputs audio/video through the vehicle terminal 500, and inputs signals from the vehicle terminal 500. It can be set to be delivered. The mobile terminal 600 includes a communication module capable of accessing the communication system 200 of a mobile communication network.

When the vehicle driver makes a phone call through the mobile terminal 600 or the vehicle terminal 500, the mobile terminal 600 makes a phone call to the communication system 200. The vehicle driver may make a call by selecting a phone number on the display of the vehicle terminal 500 or may make a call through a voice command.

The vehicle terminal 500 receives the ringback tone received through the mobile terminal 600, and may determine the success of the call connection through the ringback tone analysis without outputting the ringback tone through the speaker. During the ring back tone analysis, the vehicle terminal 500 may output a different ring tone than the ring back tone through the speaker.

The vehicle terminal 500 determines whether the call connection is successful through analysis of the ring back tone, and if the call is successful, outputs the other party's voice through the speaker.

If the result of the ring back tone analysis is a call failure, the vehicle terminal 500 may perform at least one follow-up operation of terminating an outgoing call, sending a message, redialing, and transmitting a voice message, depending on the cause of the call failure or user setting. . In this case, the vehicle terminal 500 may recommend a follow-up operation after a call failure based on artificial intelligence.

The vehicle terminal 500 may output the other party's status through a display or a speaker when the result of the ring back tone analysis is a call failure.

As such, since the vehicle terminal 500 listens to the ringback tone and determines the state of the other party to connect or end the call, the driver can listen to other audio while the ringback tone is being transmitted. In addition, since the ringback tone is not output through the speaker, the vehicle terminal 500 can recognize the voice command, and thus the driver can issue a voice command even while the ringback tone is being transmitted.

In this way, according to the embodiment, the user may not listen to the ringback tone while waiting for the call connection, so that the user can listen to the media being used without interruption until the call is connected even if the user makes a call.

According to the embodiment, when a call fails, the user does not need to listen to unnecessary ringback tone, and in particular, interference with safe driving caused by listening to ringback tone while driving can be reduced.

According to the embodiment, it is possible to determine call failure without user intervention by analyzing the ringback tone, and accordingly, follow-up operations including termination of the call are automatically performed, thereby improving user convenience.

According to the embodiment, it is possible to receive a voice command from the user while analyzing the ringback tone, so that the user can use the voice recognition-based artificial intelligence service without limitation while making a call, and can use various call-related situations and voice commands as big data. , and can be used to develop call-related AI services.

The embodiments of the present disclosure described above are not implemented only through devices and methods, and may be implemented through a program that realizes functions corresponding to the configuration of the embodiments of the present disclosure or a recording medium on which the program is recorded.

Although the embodiments of the present disclosure have been described in detail above, the scope of the present disclosure is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present disclosure defined in the following claims are also included in the present disclosure. that fall within the scope of the right.

Claims (20)

As a method of making a call by a calling device,
When receiving a call request, making a call to a communication system;
Setting the ringback tone not to be output to the speaker and analyzing the ringback tone provided according to the state of the other party's terminal; and
If the result of the ringback tone analysis is a call failure, performing at least one subsequent operation of terminating the outgoing call, sending a message, redialing, and sending a voice message.
How to make a phone call that includes. In paragraph 1,
Performing the at least one subsequent operation
A method of originating a call, which terminates the outgoing call without user intervention, and performs an additional operation of transmitting the message or redialing the call according to a cause of the call failure or a user setting. In paragraph 1,
Performing the at least one subsequent operation
A method of making a phone call, wherein, when an additional action following a call failure is set to deliver a voice message, the stored voice message is transmitted to the voice mailbox of the telecommunication service provider at a time when the voice message can be transmitted, and then the call is terminated without user intervention. In paragraph 1,
If the result of analyzing the ringback tone is a call failure, providing a call failure notification to the user.
Further comprising, how to make a call. In paragraph 1,
outputting the other party's voice through the speaker when the call connection sound analysis result is successful in the call connection;
Further comprising, how to make a call. In paragraph 1,
Analyzing the ringback tone
A method of making a call by comparing the ring back tone characteristics for each state of an incoming terminal provided by various communication service providers to determine the state of the other party's terminal. In paragraph 1,
Analyzing the ringback tone
When the ringback tone is analyzed as any one of busy, rejected, no answer, offline, and invalid number, it is determined that the call is failed. How to make a call. In paragraph 1,
receiving a voice command from a user through an activated voice recognition function while the ringback tone is received;
Further comprising, how to make a call. In paragraph 1,
Performing the at least one subsequent operation
A method of making a call, recommending a follow-up action based on a cause of call failure, user settings, or user history, and performing a follow-up action requested by a user. As a method of making a call by a calling device,
Making a call to a communication system when receiving a call outgoing voice command;
Analyzing the ringback tone without outputting the ringback tone to a speaker when receiving the ringback tone provided according to the state of the other party's terminal;
If the result of the ringback tone analysis is a call failure, recommending a follow-up action based on the cause of the call failure, user settings, or user history; and
A step of performing a follow-up action requested by the user
Including, how to make a call. In paragraph 10,
Keeping the voice recognition function active while the ringback tone is received
Further comprising, how to make a call. In paragraph 11,
The step of performing the subsequent operation is
A method of making a call by performing a subsequent operation requested by the user through a voice command. In paragraph 10,
If the result of analyzing the ringback tone is a call failure, providing a call failure notification to the user.
Further comprising, how to make a call. In paragraph 10,
outputting the other party's voice through the speaker when the call connection sound analysis result is successful in the call connection;
Further comprising, how to make a call. In paragraph 10,
Analyzing the ringback tone
A method of making a call by comparing the ring back tone characteristics for each state of an incoming terminal provided by various communication service providers to determine the state of the other party's terminal. In paragraph 10,
Analyzing the ringback tone
When the ringback tone is analyzed as any one of busy, rejected, no answer, offline, and invalid number, it is determined that the call is failed. How to make a call. When a call outgoing request is received, the call is made to the communication system, the ringback tone is set not to be output to the speaker, the ringback tone provided according to the status of the other party's terminal is analyzed, and if the ringback tone analysis result is a call failure, the call is made A processor that performs at least one subsequent operation of termination, message transmission, redial, and voice message transmission.
A call device comprising a. In paragraph 17,
The processor
While the ringback tone is being received, a voice command is received from a user through an activated voice recognition function. In paragraph 17,
The processor
If the result of the ringback tone analysis is a call failure, a call device that recommends a follow-up action or performs a follow-up action based on a cause of call failure, user settings, or user history. In paragraph 17,
The processor
A call device that recommends a subsequent operation based on user context information predicted based on user location and movement information.

Images